Builder mechanism for winding machines



' 1,652,144 H. A. LEONARD BUILDER MECHANISM FOR WINDING MACHINES Filed Feb. 26. 1923 v 2 Sheets-Sheet 1 Y M.PWM

Dec. 6, 1927.

1,652,144 H. A. LEONARD BUILDER MECHANISM FOR WINDING MACHINES Filed Feb. 26. 1923 2 Sheets-Sheet 2 INVENTORY ATTORNEY Patented Dec. 6, 1927.

UNITED STATES PATENT OFFICE.

HARRY A. LEONARD, OF HOPEDALE, .MASSA CHUSETTS, ASSIGNDR TO DBAPER COR- PORATION, 0F HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

BUILDER MECHANISM FOR WINDING MACHINES.

Application filed February 26, 1923.

This invention relates to builder mechanisms for yarn winding machines whereby yarn is laid upon yarn receivers or bobbins for subsequent use.

It is :-now the usual practice to wind yarn upon yarn receivers or bobbins with a re serve Vssupply or bunch as it is sometimes called, for subsequent use in feeler looms, so that when the teeler mechanisms of such looms call for replenishment of filling, a full length of filling may be laid in the shed on the last pick of the shuttle preceding fi1ling replenisinnent.

In :a prior application filed by Charlie A. Payne, Serial No. 612,267, at builder mech nnism was shown and described for placing upon yarn receiver-s or bobbins a reserve sup ply of filling in the form of a cylindnicel bunch and on the completion of the bunch to pass at once to the regular service traverse. Such form of 'binlches or preliminary windiugs are advantageous in connection with certain characters of yarn or types-of feele r mechanisms, but with other characters of yarns or 'ty-pesof feeler mechanisms, :and for the additional purpose of :prodncinga wound filling carrier or bobbin of the desired aiorm, it is preferable to provide :1 reserve supply of filling or bunch which will merge into the regular traverse wind, and the present invention is therefore a further development of the type of builder mechanism shown and described in'the vapplication referred to, and wherein a bunch builder mechanism has been devised for placing the windings of yarn upon yarn receivers or bobbins with a final traverse which merges into the .regula=r service traverse on the completion rof the bunch.

in accordance with the present invention the 'bnilder arm of the usual builder mechanism has mounted thereon a rocking member provided with an involute surface which is engaged by an actuator or other member of the bunch builder mechanism which in cooperation with the involute surface tofxthe rocking vmen'rber shall provide a reservesupply olfilli-ng or bunch on the filling carriers or bobbins, the traverse of which will graduall merge into the regular service traverse.

ll ore specifically stated, though without limitation to details of the bunch formation't-he present invention winds uponthe filling carriers or bobbins the preliminary layers of yarn without 'tmvense and the sub- Seriai N 0. 62!,210.

description :and the accompanying drawings of the builder mechanism provided with a good pnactical form of the present invention.

In the drawings:

Fig. 1 is a perspective view of a winding machine having vthe present invention associated therewith;

:Fi g. 2 is a detached detail in side elevation showing portions net :the builder mechanism and the presentinvention by lines in the rehitive position they occupy during regular service traverse;

Fig. 3 is .a similar view .to that of Fig. 2 showing the relation .of parts when the machine has been stopped and the builder arm has been depressed; and

Fig. 4 is a graphic illllfifilflldOllOf :a filling canrier or showing ahe form of the reserve supply of filling.

A builder mechanism 'iWlllh the present invention associated therewith is shown as applied to a :ring spinning machine of usual type whereby the yam is spun and wound directly upon yarn receivers or bobbins, and while the advantages of "the present invention she clearly manifested :by use in such type of machine, it eis'to be undrmstood that the invention is'not restricted to a ring spinning machine :but-mny tie-employed in connection :with any character of winding machine wherein yarn wound npon yarn receivers or bobbins.

In the drawings :it has not been deemed necessary to illustrate the entire winding or spinning machine, and only those parts are shown which are necessary for comprehensive understanding of the builder mechanism and the associated invention.

'zllhe end frames 1 of -the anacbine are connected by lcross ties 2 and aspindle 'rail 3 on which :the spindles :are mounted for rotative movement assusual. The ring rail d extends longitudinally of the machine and'is provided at intervals with the usual rings upon which are mounted the travelers 5 which constitute guides for directing the yarn to the :yarn receivers or bobbins. These parts mayibe of nsual-comstruction-and require no further iiliustnabion.

Mounted in the brackets; 6 carried by. one of the cross-ties 2 or-the machine frame is the rock shaft 7 on which is mounted an arm 8 carrying a weight 9 for imparting lifting movement to thering rail. The rock shaft 7 has secured to it a lifting arm 10 which, as usual, is shown ascarrying a roller 11 upon which rests'the'foot 12 of the ring rail traversing rods 13,;only; one of which is shown. The rod 13 extends upwardly and is secured to the ring rail 4. The rock shaft 7 has secured to it a-.-third. arm 14, inthe present instance, to the upper portion of which is connected the chain or.other flexible connection 15, the other end of which .is connected to the builder mechanism for imparting to the ring rail its traversing movement longitudinally of-the yarnreceiw ers or bobbins, all as usual inthis class "of machines.

The chain 15 or other flexible connection passes over a guide pulley l6 and at its lower end is connected at 17 to the usual: drum 18 secured to or formed as part of the let-- back gear 19 mounted'upon the builder arm 20. The builder arm 20is pivotally supported upon a stud or dead shaft 2l carried by the machine frame and its rear end-portion is provided with a weight 22 which is sufficient-to normally over-balance the weight of the other end of the builder-arm which carries a stud or roller .23,Eig. 3. Mounted upon the rotatingshaift which-is supported by the machine frame is the usual builder cam 25 against the cam surface 26, 0f which the pin or roller 23 bears under the-action of the Weight 22 during regular service traverse. The shaft 24, as usual, is driven from a going part of the machine, butsince the means-for-rotating the shaft 24 is old and well-known and thedetailsof which form no part of the present inventiomfit is not herein shown and described. Mounted in bearings'27 .se'cured tothe builder arm 20 isthe worm shaft 28' carry ing a worm 29Whi0h mesheswith the teeth of the gear 19, and secured'to the end por tion of the worm shaft is the. pick wheel 30 which is stepped along at intervals by the usual pick mechanism, not .here shown because it is of well known construction and the details thereof form no essential part of the present invention. 7 V

From theconstruction'thus far described it will be-apparentthat as thebuilder cam 25 is rotated, the builder'arm 20 will be given a rocking movementon its pivotal support 21 and will causethe-ring rail 4 to be moved up and downvor traversedby the cooperating lifting tendency of the weight 9 and the lowering tendency imparted from ,the builder-cam 25. As the builder arm is thus rockedfupon itssupport the pick wheel 30 is stepped along :bythe usual pick mechanism to let back on the chain. or connection described and their operation are old and well-known and constitute one good form of builder mechanism to which the present invention is readily applicable without substantial change in construction or reorganization of the builder mechanism and the parts constituting the same.

In accordance with the present invention, the builder arm carries a bunch builder member or segment having an involute bunch building surface, which at the commencement of the winding operation acts in conjunction with a circular member or actuator to lay a few preliminary or bunch winds upon the receivers or bobbins, and then complete the bunch with a traverse which merges into the regular service traverse as the bunch builder member or segment passes to an inoperative position.

In the form of the invention shown, the shaft 24 of the regular builder cam 25 has mounted thereon the toothed gear 31 of circular contour and such gear, in the present instance, is rotated in unison with the build er cam 25.

The builder arm 20 has the cooperating member or segment 32 connected thereto. In the present instance the builder arm 20 carries a bracket 33 from which projects the stud or shaft 34 on which the rocking member or segment 32 is conveniently mounted. The segment 32 isprovided with an involute surface 35 which, during the bunch building operation, will cooperate with the circular member 31 to build abunch in which-the preliminary windings are laid upon the yarn receivers or bobbins without traverse and the su'cceedinglayer or layers will be wound with a traverse that gradually merges into the regular service traverse under the dictates of the involute surface of the segment.

The involute surface of the segment 32, as shown, .is provided with a series of teeth, during the bunch building operation, engage the teeth of the rotary gear 31. One portion of the involute surface of the segment, as between the points a-b,-is formed on the arc of a circle of a uniform or constant radius, while the portion of the involute surface between approximately the points I) and c is formed on a curve of different radius, for a purpose that will later appear.

Machines of the general type herein described are usually provided with a shipper mechanism or belt shipper for stopping the machine when the filling carriers or bobbins have been completely wound, and in accordance with the present invention, advantage is taken of this circumstance to condition a train of mechanism for moving the segment from its inoperative to its operative l O l position when the machine is stopped and the builder arm is depressed.

As shown in the present instance, the diiprper mechanism comprises the rod which may extend longitudinally of the machime in suitable bearings provided therefor. The rod carries :a belt shipper fork 37 for 'laansferring the belt 38 from the fast pulley 39 to the loose pulley Q0 and conversely. The shipper rod 36 may be conveniently operated from a shaft 41 which carries an'arm 42 having a slot 43 into which projects a pin 44; carried by a yoke 45 secared to the shipper rod, as indicated in F' 1.

Vhen the machine is in opemition and Winding the filling carriers or bobbins with a sewioe traverse, the segment or rocking member 32 is in the position shown by full lines, Fig. 2, and as will be noted, is not ongaged with the gear 31. hen, however, the fill'mg carriers or bobbins have been full wound and'the machine is stopped l'ordo irig, it is desirable that the bunch builder mechanism shall be automatically positioned for commencing the winding of the next series of bobbins or tillingcarriers to build the bunch. To this end the machine frame has motmted thereon the segment controller 46 which is connected by a flexible member 47 to a spring 48, the flexible member between the controller 46 and spring being guided over a guide pulley 49, Fig. 1. When the machine is winding the filling carriers or bobbins with a full service traverse, the belt 38 is on the driving pulley 39 and the shiper rod 36 is in its left position, Fig. 1, so rat the sprin 48 is not tensioned. hen,

however, the ipper rod 36 is moved to the right, F 1g. 1, to throw the belt onto the cast pullasy and stop the machine, the spring 48 is placed under tension, and this tension is utilized in accordance with the present invention to throw the segment 32 into operative relation with the co-acting circular gear 31 when the machine is stopped and the builder arm is depressed.

In the present instance the actuator 46 is provided with a shoulder 50 on which the segment 32 normally rests While the machine is operating to lay the yarn upon the yarn receivers or bobbins with the regular traverse, as indicated in Fig. When, how ever, the machine is stopped and the spring 48 is placed under tension, the governor 46 will be lifted and cause the segment 32 to be moved from its full to its dotted line position, Fig. 2, with the teeth of the involu-te surface of the segment contacting with the teeth of the rotary .gear 31. lVhen, now, the builder arm is depressed during dotting, as usual, the tension of the spring 48 still acting through the governor 46 will throw the segment 32 from its dotted line position, Fig, 2, toits full line position, Fig. 3, or in other wards, will place the sagmmt in operative melai'titm with its co-acting gear 31., and when the builder arm is aikvwell to rise, the teeth of the invoi'lzte surfiane nf the segment will engage the teeth 'of the rotary gear 31.

Since the inwlute snrztaoe 3512f the sogmemt between the points a, and '5 upper mately, is harmed on an arc oat constant radius, it follows that -duri the time or interval that this portion of the involtfie surface is engaged by the recuperating memher or gear 31, the builder mnn wihl remain substantially stationary and the wzirnalimgs of yarn will he laced upon the yarn meceiims or bobbins without travemse. This nonmversirg movement is desirable in some dorms cit branches and obviously the extent mt volume of this portion of the bunch may be varied in acoordanoe with the mtwmd between the points a and 'b, traversed by the cooperating member or gear 31.. As the segment moved to the left, Fig. 5]., by the cooperating member or geaflhl, the portion of the involute surface between the points 1) and =0 will traverse the gem- 31 and the builder arm .20 will gradually rise with the result that the windings of yarn will now be laid upon the filling (couriers tor hobbins with an upward traverse which merges with the full regular tmaverseon-com pletion of the bunch when the segment returns to its normal or inoperative position.

As indicated in :Fig. 4, the-bobbin or fillingcar-rierl will have the bunch formed by preliminary windings without traverse, as as -52, and the filihkl layers 53 -ool1sti|ta1timg the bunch will have a triweme in one direction which gradually .morges into the neg-u 1211i traverse.

It may be desirable at tunes to vary the size or character of the bunch and to this end the bracket 33 is provided with a Hang-ed portion 54 in which is ladjustnbly wanted a stop 55 for movement of the segment 32 towards its operrmbive relation with the lco aeting gear-31. Zllhestopb is preferably formed as an adjusting screw held in zuljustihg position by a look nut-56 so that by adjusting thestop 55 number of bhe preliminary or non travense winds upon the yarn receivers or bobbins may be varied.

Similarly, the flange .54 may be provided with a stop 57, Fig. 3, fior limitingibhe movement of the segmemiti32 to its inoperative sition.

From the construction described as our stituting a good practical form of the ent invention, it will be apparent that the preliminary windings which .tormnthe bunch may be laid upon 'the moeivers oribobbins without tiwverse and the smcceeding windings which complete the bunch may be formed with a traverse in one 'dinecfinm which gradually merges into the same length as the regular traverse, and it will be equally obvious that upon variation in the involute contour of the segment that bunches of various kinds may be laid upon the yarn receivers or bobbins.

The present invention provides a simple efficient means for building bunches of the desired form upon yarn receivers or bobbins which is readily applicable to a builder mechanism of usual construction without change in the builder mechanism itself.

What is claimed is:

1. In a machine of the class described, the combination of yarn guides, a builder arm connected to the yarn guides, a builder cam, a gear rotatable with the builder cam, a segment pivotally mounted on the builder arm and having a toothed surface formed by teeth of uniform depth which is engaged by said gear during the bunch building operation, one portion of the toothed surface being formed in the arc of a circle of greater radius than another portion to build a bunch without traverse and then with a traverse in one direction which merges into the regular traverse, machine stopping mechanism, and means rendered operative by movement of the stopping mechanism to stopping position for moving the segment automatically into bunch building position.

2. In a builder mechanism for winding machines, the combination of a builder cam and builder arm, yarn guiding means connected to the builder arm, a bunch builder segment pivotally mounted on the builder arm and having a toothed bunch building portion of non-circular contour, a rotatable member which is engaged by the non-circular contour of the segment during bunch building operation, a segment controlled machine stopping mechanism, and connections between the machine stopping mechanism and segment for moving the segment into bunch building position when the stopping mechanism is moved to stopping position for auto matically winding the bunch when the machine is again started.

3. In a builder mechanism for winding machines, a builder arm and builder cam, yarn guiding means connected to the builder arm, combined with a bunch builder mechanism including a bunch builder segment loosely mounted on the builder arm and having a toothed bunch builder surface, a segment actuator for cooperating with the segment to build a bunch with a plurality of windings without traverse and then with a traverse which gradually merges into the service traverse stopping mechanism, and a spring which is tensioned by the stopping mechanism when the machine is stopped for moving the segment to operative position fOr building the bunch when the machine is again started.

4. A winding machine, havin in combination, yarn guiding means, a uilder arm connected thereto, a builder cam which acts through the builder arm to impart service traverse to the yarn guiding means, a rotary toothed gear of circular contour, a segment pivotally mounted on the builder arm to swing in a direction longitudinally thereof into and out of operative relation with the toothed gear and having a series of teeth, one portion of the series being at a greater radial distance from the axis of the segment than another portion of the series, that a bunch may be built with a final traverse that merges into the regular service traverse when the bunch is completed and the segment is moved out of operative relation with the gear and stops for confining the segment to a rocking movement in both directions on the builder arm to and from operative posltion.

5. In a machine of the class described, the combination of yarn guides, a builder arm connected to the yarn guides, a rotatable toothed gear, a toothed segment pivotally mounted on the builder arm to oscillate first in one direction into operative relation with the toothed gear and then in the opposite direction out of operative relation therewith, means for limiting the oscillating movement of the segment in each direction, and means connected to the builder arm for changing the amplitude of oscillating movement of the segment.

6. In a machine of the class described, the combination of a builder arm, a builder cam, yarn guides connected to the builder arm, a toothed gear rotatable with the builder cam, a toothed segment mounted on the builder arm for oscillatin movement first in one direction for placing the toothed segment in operative relation with the toothed gear and then in the opposite direction by the toothed gear into inoperative position, machine stopping mechanism, and means rendered effective by the stopping mechanism when the machine is stopped for oscillating the toothed segment towards operative position.

7. In a machine of the class described, the combination of a builder arm, a builder cam, yarn guides connected to the builder arm, a toothed gear rotatable with the builder cam, a toothed segment mounted on the builder arm for oscillating movement first in one direction for placing the toothed segment in operative relation with the toothed gear and then in the opposite direction by the toothed gear into inoperative position, machine stopping mechanism, and means actuated through the stopping mechanism for oscillating the toothed segment into engagement with the toothed wheel.

8. In a machine of the class described, the

combination of yarn guides. a builder arm connected to the yarn guides, a rotatable toothed gear, a toothed segment pivotally mounted on the builder arm to oscillate about a fixed center first in one direction into operative relation with the toothed gear and then in the opposite direction out of operative relation therewith. and means for limiting the oscillating movement of the segment in each direction.

9. A bunch builder attachment for builder mechanism, comprising a toothed segment having an involutc bunch building portion and adapted to be mounted upon the regular builder arm to oscillate in one direction into bunch building position and then in the opposite direction out of bunch building position, a Wheel of circular contour having teeth for engagement with the teeth of the oscillating segment and acting upon the involute portion of the segment in building a bunch and for oscillating the segment in said opposite direction into inoperative position.

In testimony whereof, I have signed my name to this specification.

HARRY A. LEONARD. 

